Yb-171, or Ytterbium-171, is a stable isotope of the element Ytterbium, which has the atomic number 70. It is one of the several isotopes of ytterbium, and it is notable for its applications in various fields, including nuclear science and materials research. Yb-171 has a mass number of 171 and is non-radioactive, making it safe for use in laboratory settings. This isotope is often used in the production of lasers and in the study of quantum computing due to its unique electronic properties. Its stability and specific characteristics make it valuable for researchers exploring advanced technologies and materials.